JezK
Edit File: mirror-string.js
// Copyright 2008 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --expose-debug-as debug // Test the mirror object for string values const kMaxProtocolStringLength = 80; // Constant from mirror-delay.js function testStringMirror(s) { // Create mirror and JSON representation. var mirror = debug.MakeMirror(s); var serializer = debug.MakeMirrorSerializer(); var json = JSON.stringify(serializer.serializeValue(mirror)); // Check the mirror hierachy. assertTrue(mirror instanceof debug.Mirror); assertTrue(mirror instanceof debug.ValueMirror); assertTrue(mirror instanceof debug.StringMirror); // Check the mirror properties. assertTrue(mirror.isString()); assertEquals('string', mirror.type()); assertTrue(mirror.isPrimitive()); // Test text representation if (s.length <= kMaxProtocolStringLength) { assertEquals(s, mirror.toText()); } else { assertEquals(s.substring(0, kMaxProtocolStringLength), mirror.toText().substring(0, kMaxProtocolStringLength)); } // Parse JSON representation and check. var fromJSON = eval('(' + json + ')'); assertEquals('string', fromJSON.type); if (s.length <= kMaxProtocolStringLength) { assertEquals(s, fromJSON.value); } else { assertEquals(s.substring(0, kMaxProtocolStringLength), fromJSON.value.substring(0, kMaxProtocolStringLength)); assertEquals(fromJSON.fromIndex, 0); assertEquals(fromJSON.toIndex, kMaxProtocolStringLength); } } // Test a number of different strings. testStringMirror(''); testStringMirror('abcdABCD'); testStringMirror('1234'); testStringMirror('"'); testStringMirror('"""'); testStringMirror("'"); testStringMirror("'''"); testStringMirror("'\"'"); testStringMirror('\\'); testStringMirror('\b\t\n\f\r'); testStringMirror('\u0001\u0002\u001E\u001F'); testStringMirror('"a":1,"b":2'); var s = "1234567890" s = s + s + s + s + s + s + s + s; assertEquals(kMaxProtocolStringLength, s.length); testStringMirror(s); s = s + 'X'; testStringMirror(s);